Investigating the rather odd behavior of the Microsoft OS/2 1.21 disk driver led me to Compaq and their EXTDISK.SYS driver. While experimenting with various setups, I realized that DOS versions older than 5.0 do not support more than two hard … Continue reading →| OS/2 Museum
This is a follow-up to a previous post about the curious driver in Microsoft OS/2 1.21. After initially writing the article, additional information came to light, explaining why the code was there. In summer 1988, Compaq released the Deskpro 386/25, … Continue reading →| OS/2 Museum
Today we will be looking at, yet again, another Compaq Deskpro. This machine is quite similar to the Deskpro EN we looked at a few months ago. The case itself is a dual desktop/tower style and can be placed in either orientation. There is a power button as well as an LED for power and […]| ancientelectronics
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